Extensor Digitorum Communis is sometimes simply referred to as Extensor Digitorum. It is one of the extensor muscles of the wrist, found in the forearm.
Origin - Lateral epicondyle of the humerus.
Insertion - Splits into 4 tendons which insert to the bases of the 2nd and 3rd Phalanges of the four fingers.
Actions - Extension of the wrist.
Extension of the fingers.
Innervation - Posterior interosseous nerve.
Daily uses - Pulling the hand back and straightening the fingers to wave.
Example strengthening exercises - Wrist extension using a dumbbell.
Example stretches - Wrist extensor stretch.
Related injuries - Tennis elbow.
Related muscles - Extensor carpi ulnaris.
Extensor carpi radialis brevis.
Extensor carpi radialis longus.
Extensor pollicis longus.